Now I know the white wires go to the Mono Jack, and the black and red wires connected to the battery pad are for the battery, but I have 2 extra black wires coming out of the inverter. I'm guessing that's for the switch?

Now I just bought a green LED, so I want it to light up whenever the saber's on. Would I just cut the red and black wire from the battery pad, and solder the LED cables onto those, or would I have them to the switch or what? [xx(]

Thanks for the help!